@inproceedings{ITiCSE-2008-Rubio-Sanchez,
	author        = "Manuel Rubio-Sánchez",
	booktitle     = "{Proceedings of the 13th Conference on Innovation and Technology in Computer Science Education}",
	doi           = "10.1145/1384271.1384356",
	isbn          = "978-1-60558-078-4",
	pages         = "313",
	publisher     = "{ACM}",
	title         = "{An introduction to problem equivalence with combinatorics}",
	year          = 2008,
}